document.write( "Question 830370: a 10-lb mixture of peanuts, cashews, and raisins sell for $14. Peanuts cost $1 per pound, cashews cost $2 per pound, and raisins cost $1.50 per pound. The weight of peanuts in the mixture is twice the weight of cashews in the mixture.\r
\n" ); document.write( "\n" ); document.write( "A. write a system of equations that represent the problem\r
\n" ); document.write( "\n" ); document.write( "B. find the number of pounds of each ingredient in the mixture.
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Algebra.Com's Answer #500557 by josgarithmetic(39617)\"\" \"About 
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Pounds of peanuts, cashews, raisins as p,c, r.
\n" ); document.write( "Prices: 1 dollars per pound peanuts, 2 dollars per pound cashews, 1.50 dollars per pound raisins.
\n" ); document.write( "Price of mixture: $14.
\n" ); document.write( "\"p=2c\".\r
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\n" ); document.write( "\n" ); document.write( "Accounting for price of mixture: \"1%2Ap%2B2%2Ac%2B1.5%2Ar=14\";
\n" ); document.write( "Accounting for pounds: \"p%2Bc%2Br=10\".\r
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\n" ); document.write( "\n" ); document.write( "Substitute for p in the two accounting equations and simplify:
\n" ); document.write( "2c+2c+1.5r=14
\n" ); document.write( "4c+1.5r=14
\n" ); document.write( "To use all integer coefficients multiply by 2...
\n" ); document.write( "\"highlight_green%288c%2B3r=28%29\"
\n" ); document.write( "-
\n" ); document.write( "2c+c+r=10
\n" ); document.write( "\"highlight_green%283c%2Br=10%29\"\r
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\n" ); document.write( "\n" ); document.write( "Solve the simultaneous equations highlighted with green.
\n" ); document.write( "\"3c%2Br=10\" is the same as \"9c%2B3r=30\";
\n" ); document.write( "-
\n" ); document.write( "\"%289c%2B3r%29-%288c%2B3r%29=30-28\"
\n" ); document.write( "\"highlight%28c=2%29\"-
\n" ); document.write( "-
\n" ); document.write( "p=2c
\n" ); document.write( "p=2*2
\n" ); document.write( "\"highlight%28p=4%29\"
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\n" ); document.write( "Use either of the accounting equations to find the value for r.
\n" ); document.write( "Using 3c+r=10
\n" ); document.write( "r=10-3c
\n" ); document.write( "r=10-3*2
\n" ); document.write( "\"highlight%28r=4%29\"
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